First circuit to make it to a box!

[Matthew Sanford]

Finished the StompLFO circuit (rev.1) and boxed it up in what was a news van mast too close to power lines box! First working one in a box!







Features a tap with a sync, cv TRS inputs that disconnect the pots (tip goes to chip so TS works), vactrols going to 3 TS each for regular and inverted with 3 TRS up the middle to carry both (and join one node, could be problematic using both sides to different things).

Thinking on how to do actual CV out, would it be a problem to make a vactrol as either half of a voltage divider for regular and inverted? Say parallel to 1M with 10k the other, and appropriate filter caps, +5v side giving regular and one the 0v side for inverted? I've heard voltage dividers are not exactly stable, would I need to buffer the out? Or is this idea just problematic?

Next I'll get some stuff together for it to drive! Hooray for one done!

[eh la bas ma]

This device looks great, but i don't understand what you can do with it, besides tap-tempo.

I thought tap-tempo has to be implemented directly inside a delay or a modulation circuit  ?

Maybe a demo or a drawing would make it much more understandable for simple beginners like myself ?

[Matthew Sanford]

Sorry Justin, I should've put it in https://www.diystompboxes.com/smfforum/index.php?topic=130864.0, it's essentially the StompLFO data sheet modified a bit with extra vactrols. Nothing to hear yet, but when I get some breadboarded for it to control I'll put some sounds up.

[Ben N]

So kind of a master tap tempo LFO for your pedalboard or synth?

[Matthew Sanford]

Pretty much, currently with StompLFO chip which gives these waves



Plan is to make another for a One Shot chip (LFO/env gen) too, then mod the pedals on my board with jacks to turn the pots with the LFO and a slew of circuits like BassBallz with in jacks on every knob. Eventually I'll make more stand alone with the LFO included but this modular way will give me time to play and see how I really want them to end up.

May take me some time to get them all built, but I'll get sound samples as I breadboard to better show what I mean, hopefully this weekend

Edit to add prospective circuit akin to Equinox II, sorry so cramped, the jacks are ins from this thing



More edit: distortion for both wave of distortion level and either dirt wah or squish to mid hump if one inverted. LPF/hpf values not set yet





Another add on edit:

This is what I was thinking to create CV out, probably needs buffers on the outs so loads don't mess it up